S-15
SM-E2B SERIES, WSM
DIESEL ENGINE
(2) Lubricating System
Engine Oil Pressure
1. Remove the engine oil pressure switch, and set an oil pressure
tester. (Code No. : 07916-32032.)
2. Start the engine. After warming up, measure the oil pressure of
both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient
• Oil pump defective
• Oil strainer clogged
• Oil filter cartridge clogged
• Oil gallery clogged
• Excessive oil clearance
• Foreign matter in the relief valve
(When reassembling)
• After checking the engine oil pressure, tighten the engine oil
pressure switch to the specified torque.
W10349520
(3) Cooling System
Fan Belt Tension
1. Measure the deflection (A), depressing the belt halfway between
the fan drive pulley and alternator pulley at specified force 98 N
(10 kgf, 22 lbs).
2. If the measurement is not within the factory specifications, loosen
the alternator mounting screws and relocate the alternator to
adjust.
W10356670
Engine oil pressure
At idle
speed
Factory
spec.
More than 49 kPa
0.5 kgf/cm
2
7 psi
At rated
speed
Factory
spec.
196 to 441 kPa
2.0 to 4.5 kgf/cm
2
28 to 64 psi
Allowable
limit
147 kPa
1.5 kgf/cm
2
21 psi
Tightening torque Oil pressure switch
14.7 to 19.6 N·m
1.5 to 2.0 kgf·m
10.8 to 14.5 ft-lbs
Deflection (A) Factory spec.
7.0 to 9.0 mm
0.28 to 0.35 in.
(A) Deflection
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